It depends on your condition and your doctor. My friend received HL 3 weeks before her EDD from her (private) KKH doctor. Her condition was bad. Lots of pain, heaviness feeling and baby was also deemed too big. She was working a bit too hard so her doctor forced her to rest at home ie HL. I believe you can tell your doctor that you’re getting more tired and ask for a HL 2-3 weeks before EDD. Then it all depends on your doctor (don’t think it matters if you’re private or subsidised).
I believe it depends on your condition.